| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 16 |
17%
|
| 1 | Never | 4 |
4.3%
|
| 2 | Once a week | 22 |
23.4%
|
| 3 | Between 2 and 4 times a week | 27 |
28.7%
|
| 4 | Daily | 24 |
25.5%
|
| 5 | More than once a day | 1 |
1.1%
|
| Sysmiss | 258 |